ASAPA stands for “Authentication, Security and Privacy Assurance” and is the SSO (single Sign On) system allowing users to be authenticated only once on any solution compliant with SHAPES for accessing any other inter-connected platform without need for re-authentication. Note that authorization to access data is handled by the platform that host such a data. For more info refer to D4.1: https://shapes2020.eu/wp-content/uploads/2022/01/SHAPES-D4.1-SHAPES-TP-Requirements-and-Architecture-v1.3.pdf